Maven 父子工程出現 [ERROR] 'dependencies.dependency.version' for xxxjar is missing. 問題

問題原因是，子工程（Sub1）所繼承的父工程（Main）也繼承了它的父工程（Parent），需要在（Main）這個父工程中pom.xml配置中，增加

relativePath：

    <parent>
        <groupId>cn.corpdata.framework</groupId>
        <artifactId>framework-parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <relativePath>../framework-parent/pom.xml</relativePath>
    </parent>

測試Maven工程的報錯如下：

[ERROR] 'dependencies.dependency.version' for mysql:mysql-connector-java:jar is missing. @ cn.corpdata.framework:framework-dao:[unknown-version], /Users/admin/Documents/workspace-sts-3.8.4.RELEASE/framework-main/framework-dao/pom.xml, line 19, column 15
[ERROR] 'dependencies.dependency.version' for commons-dbcp:commons-dbcp:jar is missing. @ cn.corpdata.framework:framework-dao:[unknown-version], /Users/admin/Documents/workspace-sts-3.8.4.RELEASE/framework-main/framework-dao/pom.xml, line 25, column 15
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-context:jar is missing. @ cn.corpdata.framework:framework-dao:[unknown-version], /Users/admin/Documents/workspace-sts-3.8.4.RELEASE/framework-main/framework-dao/pom.xml, line 31, column 15
[ERROR] 'dependencies.dependency.version' for org.mybatis:mybatis:jar is missing. @ cn.corpdata.framework:framework-dao:[unknown-version], /Users/admin/Documents/workspace-sts-3.8.4.RELEASE/framework-main/framework-dao/pom.xml, line 37, column 15

[ERROR] 

[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.

[ERROR] Re-run Maven using the -X switch to enable full debug logging.

[ERROR] 

[ERROR] For more information about the errors and possible solutions, please read the following articles:

[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException